Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


definitely annoying
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
39,014 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2010 Kia Forte engine problems

engine problem

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2010 Kia Forte Owner Comments

problem #8

May 102016


  • miles


I have a 2010 Kia Forte koup. It runs and drives alright besides it makes such a knock. I have heard it could be a rod knock or a spud bearing etc. Need to kno if I'm under manufacturer warrenty as I'm not the original owner. Car only has 88,000 miles on it too. Also the place I took it to see what was wrong said it would be 2 grand to fix it. How do you expect me to do that as I'm making payments on the car and only had it since April of this year.

- Eriw, PA, USA

problem #7

Feb 262016


  • 95,000 miles
I have Kia Forte which was running fine. Until I change the starter then the oil was pumping to the engine it would knock loudly & if I would any longer it would blow the engine.

- San Antonio, TX, USA

problem #6

Jul 132010

Forte 4-cyl

  • 10 miles
When at stopped position I step on footfeed and rpms do not increase and then all of a sudden the vehicle surges forward. The rpms as shown on the gauge show that it is in the idle state until the sudden surge. This mostly happens when trying to advance slowly. This happens infrequently but presents a safety concern when it happens in close facility or when in traffic. The delay in vehicle movement may be as long as 10 seconds and then it just jumps to current demand from the footfeed. This happens rarely but when it happens it really alarms the driver.

- Portland, OR, USA

problem #5

Jul 052014


  • 43,000 miles


The contact owns a 2010 Kia Forte. The contact stated that while driving 40 mph, the engine stalled. The contact was able to restart the vehicle but the problem recurred several times. The vehicle was taken to the dealer, who could not duplicate the failure. The vehicle had not been repaired. The manufacturer was not made aware of the problem. The approximate failure mileage was 43,000.

- Tampa, FL, USA

problem #4

Jun 182014


  • 70,000 miles
I was driving through a reduced speed zone of 35 mph and went to set my cruise control, about 3-5 seconds later I felt the car go dead. I lost power steering and all electrical systems. My indicator lights were on and flickering and I had no control over the vehicle other than waning off to the side of the road to get out of the way of traffic. Once my car came to a stop I proceeded to turn off the ignition. I tried starting it and the engine turned a couple of times but went dead so I turned it off. I tried one more time to start the ignition and was only barely able to get the engine to start and maintain. I went off on my way and later on my way home I stopped to get food and when I got back in my car I tried starting it and it struggled to start. I have only had my car for 1.5 years and only in the past couple months experienced problems with my cruise control not activating and setting to my current speed.

- Towson, MD, USA

problem #3

Mar 172014


  • 47,000 miles
The contact owns a 2010 Kia Forte. The contact stated that there was a load knocking in the engine. The vehicle was taken to the dealer, who diagnosed that the vehicle exhibited a rod knock and recommended having the engine replaced. The vehicle was not repaired. The manufacturer was notified of the problem. The approximate failure mileage was 47,000.

- San Francisco, CA, USA

problem #2

Oct 012013

Forte 4-cyl

  • 47,100 miles
Our 2010 Kia Forte ex lost 90% of power repeatedly (rpms drop to idle, regardless of throttle position) at speeds from 0-35mph. This is not the first occurrence, but I think it is the same problem. This is very dangerous if you are making a left turn and you lose acceleration, you can be in the way of oncoming traffic by losing power. About 2 years ago (25,000 miles or so) the tps (throttle position sensor) went out. Kia could not diagnose it until it threw a code (lame). Now we get the same issue, the vehicle is stalling, or "stumbling" when the speed should be constant or accelerating, but there is no engine code for the code reader to pickup yet, so the mechanics can't figure out what to do. Apparently this is a problem on many models of Kia/Hyundai and the mechanics don't recognize it so they can't fix it, and you are stuck with a dangerous condition. I think there should be a recall of these faulty tps sensors. Kia/Hyundai should at least issue a safety tsb (technical service bulletin) to clue in their mechanics as to what the problem is. Here's a great article showing the problem: thanks for your attention to this matter.

- Ogden, UT, USA

problem #1

Mar 082011


  • 10,000 miles
The contact owns a 2010 Kia Forte. The contact stated that while driving 10 mph, the vehicle stalled without warning. The contact restarted the vehicle and it functioned properly. The contact vehicle was taken to the dealer who was unable to diagnose the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 10,000. The VIN was not available.

- Black Mountain, NC, USA

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